Fighting is happening in a village. All villagers are killed by mercenaries led by Rith (Rith
Luecha). Fighters, riding horses and wearing black clothes, led by Maneerak (Jarunee
Sooksawad) are chasing them away. Maneerak has a mixed of Ninja and cowboy skills.
Two groups are fighting for this area control as it contains precious gems. One group
includes Maekin (Krung Srivilai), Kecha (Kecha Plianvithee), Maneewong (Nipaporn
Nongnuch) and Maneerak. The opposite group includes Rith, Lak (Lak Apichat) and
Runfa (Linda Khatancharoen). Maneerak, Maneewong and Runfa are three sisters.
Their father died before. Rith's ruffians are looking over workers digging for gems. Yutta
(Sorapong Chatree) finds a big black emerald (มรกตดำ) and flees away but is chased by
the guards. The black stone (ก้อนหิน) is a sacred item. It helps to get rid of the guards and
a blind monk appears to Yutta to encourage him to take good care of the stone. A
mysterious man called Chaiya (Chaiya Suriyun) keeps surveying the two groups. Yutta
is involved despite him in the fightings between the two groups as he helped
Maneewong and then sold some gems. Yutta loves Runfa but she cannot be trusted as
she steals the black stone while he is sleeping. This time, Yutta helps Maneerak,
younger sister of Maneewong. The black stone belongs to Tibet and Runfa tries to sell
it. Maneerak is able to get the black stone as Rufa's domestic helper stole it.
Maneewong wishes to get the full heritage of her father. Maneerak visits her mum
(Ratanaporn Intarakamhaeng) in a Buddhist retreat on a hill. Yutta follows her but
Maneewong and her lover Maekin are just behind. Duel happens between Yutta and
Maekin. Everybody is now looking for the black stone. Maekin kills Rith during the
fighting between the two groups. Yutta gets rid of Lak. Finally both Yutta and Maekin
are discovered to be undercover police officers (ผู้กอง). Chaiya(Chaiya Suriyun) is an
undercover military officer. Chaiya and the mother make everybody realize greed.
Understanding is back in the family and Yutta will bring back the black stone to Tibet
with Maneerak. This 1h37mn movie is part of Thai Tom Yam western style. The Thai
movie poster mentioned that nine Thai stars, having received Thai cinema awards
before, are featured in this movie.